Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 7 Answered

the ages of A and B are in ratio 4:3. After 6 years, there ages will be in ratio 11:9. A's present age is?
Asked by annusurana1691 | 29 Oct, 2021, 08:24: PM
answered-by-expert Expert Answer
 
Let the age of A be 4x and age of B is 3x.
According to the condition, we get
begin mathsize 16px style fraction numerator 4 straight x plus 6 over denominator 3 straight x plus 6 end fraction equals 11 over 9
rightwards double arrow 9 open parentheses 4 straight x plus 6 close parentheses equals 11 open parentheses 3 straight x plus 6 close parentheses
rightwards double arrow 36 straight x space plus space 54 space equals space 33 straight x space plus space 66
rightwards double arrow 3 straight x space equals space 12
rightwards double arrow space space straight x space equals space 4
end style
Therefore, the age of A be 4x is 4(4) = 16 years and age of B is 3x=3(4) = 12 years.
Answered by Yasmeen Khan | 30 Oct, 2021, 10:39: PM

Concept Videos

CBSE 7 - Maths
Asked by sanjeev2000chaurasia | 25 Dec, 2023, 07:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by sanjeev2000chaurasia | 21 Dec, 2023, 08:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by jayeshrangari1206 | 04 Dec, 2023, 12:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by aarushreddy2983 | 30 Oct, 2023, 08:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by sushamakondekar40 | 19 Jan, 2023, 05:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by mishramanisha242 | 05 Jun, 2022, 09:14: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by annusurana1691 | 29 Oct, 2021, 08:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 7 - Maths
Asked by mahjabeenfahmida | 16 Jan, 2021, 06:18: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×